<template>
  <div>
      <a-card>
      <!-- 2. 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 650px;height:300px;"></div>
    </a-card>
  </div>
</template>

<script>
// 1. 引入 echarts 按需引入
import * as echarts from 'echarts'
import {getReport} from '@/network/report'
export default {
    components:{},
    data(){
        return{
            options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
        }
    },
    created(){},
    mounted(){
        this.getReportList()
    },
    methods:{
        getReportList(){
            // 3. 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))
            getReport().then(
                res =>{
                    if (res.meta.status !== 200) {
      return this.$message.error('获取折线图数据失败!')
    }
    // 4. 指定图表的配置项和数据
    const result = _.merge(res.data, this.options)
    // 5. 使用刚指定的配置项和数据显示图表。
    myChart.setOption(result)
                }
            )
        }
    }
}
</script>

<style lang="less" scoped>

</style>